package com.google.code.springwt.client.pattern;

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

/**
 * Observales notify Listeners by firing Events. The source may be used to know the event originator (like
 * java.util.EventObject does), and the type may be used to distinguish the events.
 * <p>
 * Typical use is to define an Enum for events types, so that the controller can use a <code>switch</code> to determine
 * the adequate action.
 * 
 * @author ndeloof
 */
public class Event<T>
{
    private T source;

    private Object type;

    public Event( T source, Object type )
    {
        this.source = source;
        this.type = type;
    }

    /**
     * @return the source
     */
    public T getSource()
    {
        return source;
    }

    /**
     * @return the type
     */
    public Object getType()
    {
        return type;
    }
}
